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Finding the Third Proportional to 717,907.50 and 1,111,478.63

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Solution

The third proportional to 717,907.50 and 1,111,478.63 is: 1,720,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,907.50 : 1,111,478.63 = 1,111,478.63 : x
  2. Step 2: Convert to fraction form
    717,907.50/1,111,478.63 = 1,111,478.63/x
  3. Step 3: Cross multiply
    717,907.50x = 1,111,478.63 × 1,111,478.63
  4. Step 4: Simplify right side
    717,907.50x = 1,235,384,733,831.89
  5. Step 5: Solve for x
    x = 1,235,384,733,831.89/717,907.50
  6. Step 6: Final answer
    x = 1,720,813.24

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.